#include<stdio.h>
int main()
{
	int year,flag;
	printf("enter year:");
	scanf("%d",&year);
	if((year%400)==0)
		flag=1;
	else
		flag=0;
	if(flag==1)
		printf("%d is a leap year!",year);
	else
		printf("%d is not a leap year!",year);
	return 0;
}
